Update links to https://docs.ultralytics.com (#11412)

* Update links

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

hubconf.py

@@ -73,7 +73,7 @@ def _create(name, pretrained=True, channels=3, classes=80, autoshape=True, verbo
         return model.to(device)
 
     except Exception as e:
-        help_url = 'https://github.com/ultralytics/yolov5/issues/36'
+        help_url = 'https://docs.ultralytics.com/yolov5/tutorials/pytorch_hub_model_loading'
         s = f'{e}. Cache may be out of date, try `force_reload=True` or see {help_url} for help.'
         raise Exception(s) from e